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+What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
+KernelVersion:
+Contact: linux-iio@vger.kernel.org
+Description:
+ Stores the PLL frequency in Hz for channel Y.
+ Reading returns the actual frequency in Hz.
+ The ADF4371 has an integrated VCO with fundamendal output
+ frequency ranging from 4000000000 Hz 8000000000 Hz.
+
+ out_altvoltage0_frequency:
+ A divide by 1, 2, 4, 8, 16, 32 or circuit generates
+ frequencies from 62500000 Hz to 8000000000 Hz.
+ out_altvoltage1_frequency:
+ This channel duplicates the channel 0 frequency
+ out_altvoltage2_frequency:
+ A frequency doubler generates frequencies from
+ 8000000000 Hz to 16000000000 Hz.
+ out_altvoltage3_frequency:
+ A frequency quadrupler generates frequencies from
+ 16000000000 Hz to 32000000000 Hz.
+
+ Note: writes to one of the channels will affect the frequency of
+ all the other channels, since it involves changing the VCO
+ fundamental output frequency.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_name
+KernelVersion:
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reading returns the datasheet name for channel Y:
+
+ out_altvoltage0_name: RF8x
+ out_altvoltage1_name: RFAUX8x
+ out_altvoltage2_name: RF16x
+ out_altvoltage3_name: RF32x
+
+What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
+KernelVersion:
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute allows the user to power down the PLL and it's
+ RFOut buffers.
+ Writing 1 causes the specified channel to power down.
+ Clearing returns to normal operation.